Help with this code

[cit78]

Hi all,

I'm very new to assembly language and I'm having trouble working out what the following code is doing. Can anyone explain what is happening?

0052F920 /> 55 PUSH EBP
; <------------ START routine
0052F921 |. 8BEC MOV EBP,ESP
0052F923 |. 83EC 08 SUB ESP,8
0052F926 |. 68 76554000 PUSH <JMP.&MSVBVM60.__vbaExceptHandler> ; SE handler installation
0052F92B |. 64:A1 00000000 MOV EAX,DWORD PTR FS:[0]
0052F931 |. 50 PUSH EAX
0052F932 |. 64:8925 000000>MOV DWORD PTR FS:[0],ESP
0052F939 |. 83EC 3C SUB ESP,3C
0052F93C |. 53 PUSH EBX
0052F93D |. 56 PUSH ESI
0052F93E |. 57 PUSH EDI
0052F93F |. 8965 F8 MOV DWORD PTR SS:[EBP-8],ESP
0052F942 |. C745 FC F84C40>MOV DWORD PTR SS:[EBP-4],Dft8.00404CF8
0052F949 |. 8B55 0C MOV EDX,DWORD PTR SS:[EBP+C] ; //// check number....
0052F94C |. 33C0 XOR EAX,EAX
0052F94E |. 8D4D EC LEA ECX,DWORD PTR SS:[EBP-14]
0052F951 |. 8945 EC MOV DWORD PTR SS:[EBP-14],EAX
0052F954 |. 8945 E8 MOV DWORD PTR SS:[EBP-18],EAX
0052F957 |. FF15 30134000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaStrCo>; MSVBVM60.__vbaStrCopy
0052F95D |. 83EC 10 SUB ESP,10
0052F960 |. 8B45 EC MOV EAX,DWORD PTR SS:[EBP-14]
0052F963 |. 8BFC MOV EDI,ESP
0052F965 |. B9 08000000 MOV ECX,8
0052F96A |. 83EC 10 SUB ESP,10
0052F96D |. BE 0B400000 MOV ESI,400B
0052F972 |. 890F MOV DWORD PTR DS:[EDI],ECX
0052F974 |. 8B4D DC MOV ECX,DWORD PTR SS:[EBP-24]
0052F977 |. 8D55 E8 LEA EDX,DWORD PTR SS:[EBP-18]
0052F97A |. 894F 04 MOV DWORD PTR DS:[EDI+4],ECX
0052F97D |. 8BCC MOV ECX,ESP
0052F97F |. 6A 02 PUSH 2
0052F981 |. 6A 02 PUSH 2
0052F983 |. 8947 08 MOV DWORD PTR DS:[EDI+8],EAX
0052F986 |. 8B45 E4 MOV EAX,DWORD PTR SS:[EBP-1C]
0052F989 |. 8947 0C MOV DWORD PTR DS:[EDI+C],EAX
0052F98C |. 8B45 BC MOV EAX,DWORD PTR SS:[EBP-44]
0052F98F |. 8931 MOV DWORD PTR DS:[ECX],ESI
0052F991 |. 8941 04 MOV DWORD PTR DS:[ECX+4],EAX
0052F994 |. 8B45 08 MOV EAX,DWORD PTR SS:[EBP+8]
0052F997 |. 50 PUSH EAX
0052F998 |. 8951 08 MOV DWORD PTR DS:[ECX+8],EDX
0052F99B |. 8B55 C4 MOV EDX,DWORD PTR SS:[EBP-3C]
0052F99E |. 8951 0C MOV DWORD PTR DS:[ECX+C],EDX
0052F9A1 |. FF15 68104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaRaise>; MSVBVM60.__vbaRaiseEvent
0052F9A7 |. 83C4 2C ADD ESP,2C
0052F9AA |. 68 B9F95200 PUSH Dft8.0052F9B9
0052F9AF |. 8D4D EC LEA ECX,DWORD PTR SS:[EBP-14]
0052F9B2 |. FF15 34144000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeS>; MSVBVM60.__vbaFreeStr
0052F9B8 \. C3 RETN ; <-------------------------- FINISH routine
0052F9B9 . 8B4D 10 MOV ECX,DWORD PTR SS:[EBP+10]
0052F9BC . 66:8B55 E8 MOV DX,WORD PTR SS:[EBP-18]
0052F9C0 . 5F POP EDI
0052F9C1 . 5E POP ESI
0052F9C2 . 66:8911 MOV WORD PTR DS:[ECX],DX
0052F9C5 . 8B4D F0 MOV ECX,DWORD PTR SS:[EBP-10]
0052F9C8 . 33C0 XOR EAX,EAX
0052F9CA . 64:890D 000000>MOV DWORD PTR FS:[0],ECX
0052F9D1 . 5B POP EBX
0052F9D2 . 8BE5 MOV ESP,EBP
0052F9D4 . 5D POP EBP
0052F9D5 . C2 0C00 RETN 0C